The Union Auxiliary Guards

As today is Juneteenth, a Wikipedia article about the holiday seems appropriate:

Juneteenth - Wikipedia Juneteenth, officially Juneteenth National Independence Day, is a federal holiday in the United States. It is celebrated annually on June 19 to commemorate the end of slavery in the United States. The holiday's name, first used in the 1890s, is a portmanteau of June and nineteenth, referring to June...

An interesting article on Garibaldi’s International Legion:

International Legion (Italy) - Wikipedia The International Legion was created in Italy by Giuseppe Garibaldi, on October 5, 1860 – in the immediate aftermath of the Battle of the Volturno, where the forces of the Bourbon Kingdom of the Two Sicilies were decisively broken.